Leak-proof bottle cap



FIG. 1 is top perspective view of the bottle cap according to the invention;

FIG. 2 is a front view of the bottle cap of FIG. 1;

FIG. 3 is a rear view of bottle cap of FIG. 1;

FIG. 4 is a top plan view of the bottle cap of FIG. 1; and,

FIG. 5 is a side view of the bottle cap of FIG. 1.

The broken lines in the drawings depict environmental subject matter only and form no part of the claimed design. 

The ornamental design for a leak-proof bottle cap, as shown and described. 